METHOD OF PRODUCTION OF NICKEL HYDROXIDE FOR THE ANODIC MASS OF THE NICKEL OXIDE ELECTRODE OF THE ALKALINE ACCUMULATORS Russian patent published in 2006 - IPC H01M4/32 H01M10/30 

FIELD: electrotechnical industry; method of production of the nickel hydroxide for anode mass of the nickel oxide electrode of the alkaline accumulators.

SUBSTANCE: the invention is pertaining to field of the electrical technology and may be used for the industrial production of the anode masses for the alkaline cadmium-nickel accumulators. The technical result of the invention is reduction of the material and power inputs at production of nickel hydroxide due to improvement of the manufacturability of the process of the nickel hydroxide scrubbing from sodium sulfate, decrease of the nickel-containing raw losses and stabilization of the high electrochemical activity of the nickel hydroxide. The method includes deposition of the nickelous hydroxide from the solution of the nickel sulfate by the solution of the sodium alkali with the additive of the sodium carbonate at dozing of the solutions with the subsequent filtration, washing and drying, during which at the nickel hydroxide deposition the retention of the of sodium alkali excess within the limits of 0.025-007 g/mmole is ensured, due to maintaining of the constant ratio of the solutions, at which per 1 g/mmole of the nickelous sulfate solution there are 4.5-5.3 g/mole of the sodium alkali and 0.35-0.41 g/mole of the sodium carbonate.

EFFECT: the invention ensures reduction of the material and power inputs at production of nickel hydroxide due to improvement of the manufacturability of the process of the nickel hydroxide scrubbing from sodium sulfate, decrease of the nickel-containing raw losses and stabilization of the high electrochemical activity of the nickel hydroxide.

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